Oberton 18XB1600

Woofer

18″ / 461 mm
Nominal diameter
33 Hz
Resonance
0.28
Q factor
95 dB
Sensitivity
± 12.5 mm
Linear excursion
3200 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
95.1
dB
Frequency response
35 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
32.5
Hz
Mechanical quality factor
QMS
8.74
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.28

Large signal parameters

Maximum linear excursion
xmax
12.5
mm
Air volume displaced at xmax
VD
1448
cm³
Power handling
P
1600
W
Program power
Pmax
3200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.46
mH
VC Diameter
115
mm
Winding height
HVC
32
mm
Winding material
Copper
Former material
Glass fiber

Magnet

Flux density
B
1.1
T
Force factor
Bl
29.6
N/A
Motor constant
Bl/√RE
12.9
N/√W
Air gap height
HAG
14
mm
Material
Ferrite

Diaphragm

Effective diameter
384
mm
Effective area
SD
1158
cm²
Moving mass
MMS
231
g
Moving mass (without air load)
MMD
203
g
Material
Paper with Kevlar and glass fibers

Suspensions

Stiffness
KMS
9.62
N/mm
Compliance
CMS
104
µm/N
Equivalent volume to the compliance
VAS
267
L
Mechanical resistance
RMS
5.4
N·s/m

Dimensions

Nominal diameter
18
461
mm
Overall diameter
461
mm
Baffle cutout diameter
417
mm
Overall depth
209
mm
Volume occupied by the driver (estimated)
8.4
L
Net weight
16.8
kg
Frame material
Die cast aluminium
Oberton 18XB1600 SPL
Oberton 18XB1600 Dimensions

Export this driver to a simulation software:

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fS
30 Hz
SD
1200 cm²
30 - 1000 Hz
QTS
0.28
xmax
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Bl/√RE
13
Pmax
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fS
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SD
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xmax
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